Carboxydotrophic Acetogenesis in Alkaline Conditions Results in Transient Formate Production by the Halo-Alkaliphilic Acetogen Haloacetibacter carboxydivorans Gen. Nov. sp. Nov. [PDF]
Environ Microbiol RepCarboxydotrophic acetogens are found widespread in the environment, yet the strains characterised to date are almost exclusively mild acidophiles or neutrophiles, often isolated from gut or freshwater systems.
Diender M +5 more
europepmc +3 more sources
Reductive acetogenesis is a dominant process in the ruminant hindgut [PDF]
MicrobiomeBackground The microbes residing in ruminant gastrointestinal tracts play a crucial role in converting plant biomass to volatile fatty acids, which serve as the primary energy source for ruminants.
Qiushuang Li +16 more
doaj +3 more sources
Methanogenesis and Acetogenesis in Hydrogenotrophy with Carbonate Minerals: Dependence on Mineral Surface Area, Biofilm Growth, and Microbial Community. [PDF]
Environ Sci TechnolThe production, storage, and use of hydrogen are anticipated to grow substantially to achieve energy and climate goals. Consequently, microbial communities in many terrestrial and subsurface Earth environments could be exposed to elevated hydrogen ...
Qi Y +7 more
europepmc +2 more sources
Mitigating methane emissions and promoting acetogenesis in ruminant livestock
Frontiers in Animal ScienceThrough enteric fermentation, ruminants convert fibrous biomass into high-quality proteins like meat and milk. In this process however, methanogenic archaea in the ruminant gastrointestinal tract produce methane, a potent greenhouse gas, from the by ...
Rehema Iddi Mrutu +5 more
doaj +2 more sources
Genome-Scale Analysis of Acetobacterium woodii Identifies Translational Regulation of Acetogenesis
mSystems, 2021 Acetogens synthesize acetyl-CoA via the CO2-fixing Wood-Ljungdahl pathway. Despite their ecological and biotechnological importance, their translational regulation of carbon and energy metabolisms remains unclear.
Jongoh Shin +8 more
doaj +4 more sources
Frontiers in Microbiology, 2021 Symbiotic digestion of lignocellulose in the hindgut of higher termites is mediated by a diverse assemblage of bacteria and archaea. During a large-scale metagenomic study, we reconstructed 15 metagenome-assembled genomes of Bathyarchaeia that represent ...
Hui Qi Loh +2 more
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Homoacetogenesis and microbial community composition are shaped by pH and total sulfide concentration [PDF]
Microbial Biotechnology, 2020 Summary Biological CO2 sequestration through acetogenesis with H2 as electron donor is a promising technology to reduce greenhouse gas emissions. Today, a major issue is the presence of impurities such as hydrogen sulfide (H2S) in CO2 containing gases ...
Eleftheria Ntagia +4 more
doaj +3 more sources
Frontiers in Microbiology, 2019 Anaerobic digestion is a widely applied technology for sewage sludge treatment. Hydrogen and CO2 are important degradation products, which serve as substrates for both hydrogenotrophic methanogenesis and chemolithotrophic acetogenesis.
Bo Fu +8 more
doaj +2 more sources
Genomic and enzymatic evidence of acetogenesis by anaerobic methanotrophic archaea
Nature Communications, 2020 Ocean cold seeps are poorly understood relative to related systems like hydrothermal vents. Here the authors use high pressure bioreactors and microbial communities from a cold seep mud volcano and find a previously missing step of methane conversion to ...
Shanshan Yang +9 more
doaj +2 more sources
Energies, 2020 Aimed at the low ratio of carbon and nitrogen (C/N, approximately 7/1) of waste activated sludge (WAS), which would inhibit the acetogenesis process during anaerobic fermentation, this study introduced three brewing wastes, including vinegar (VR ...
Yu Zhang +6 more
doaj +2 more sources